Oil-pump.



C. BARNES.

OIL PUMP.

- APPLICATION FILED 001228, 1908. annnwnn FEB. 6,1911.

' 991,931. Patented May 9,1911.

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whine/Me:

U. BARNES.

OIL PUMP.

APPLICATION FILED 0011.28, 1908. RENEWED FEB. 6, 1911.

991,931. Patented Ma s, 1911.

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Witnmom Cit UNITED STATES PATENT OFFICE.

CLEO BARNES, 0F MELROSE, IOWA.

OIL-PUMP.

Application filed October 28, 1908, Serial No. 459,901. Renewed February6, 1911.

Specification of Letters Patent.

Patented May 9, 1911.

Serial No. 606,864.

T 0 all whom it may concern:

Be it known that I, CLEO BARNES, a citizen of the United States,residing at Melrose, in the county of Monroe, State of Iowa, haveinvented certain new and useful Improvements in OilPumps; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

The invention relates to oil pumps and more particularly to the class ofoil pumps adapted to feed and supply oil to a steam engine cylinder.

The primary object of the invention is the provision of an oil pump inwhich the lubricant is forced from a reservoir or source of supply to asteam engine cylinder by novel means of a piston actuated from the valvestem of the steam chest of the steam engine.

Another object of the invention is the provision of an oil pump having avalve mechanism for closing the passage from the reservoir to the pistonchamber and preventing the filling of the latter with oil.

A further object of the invention is the provision of an oil pumpcomprising an oil reservoir, a casting supporting the same and having achamber or passageway in communication therewith, pipe connectionsbetween the casting and the steam engine cylinder to deliver oilthercinto, a piston working in said passageway to force the oil from thereservoir to the steam cylinder, a connection between the valve rod ofan engine to control or actuate the said piston, and a steam connectionbetween the steam cylinder and the oil reservoir to admit steam into thelatter for maintaining the oil warm.

The invention has reference to certain details of construction all ofwhich will be hereinafter described and claimed, reference being had tothe accompanying drawings, in which the preferred adaptation is shown.

It is to be understood that changes, variations and modifications may bemade such as come properly within the scope of the claim hereuntoappended without departing from the spirit of the invention. 7

In the drawings, Figure l is a side elevation of a steam engine cylinderand steam chest with the invention mounted in position thereon. Fig. 2is a similar view with the oil pump in a central, vertical sectionalelevation. Fig. 3 is an end elevation of Fig. 1. Fig. 4 is a top planview.

Similar reference characters indicate corresponding parts throughout theseveral. views in the drawings.

In the drawings, the numeral 5 designates the steam engine cylinder thesame being of the ordinary construction and having its steam chest 6thereon in which works the ordinary valve actuated by the valve rod 7and mounted upon the top cover of the steam chest 6 by a bracket 8 is acasting 9 having centrally therein a longitudinal bore or passageway 10which is intersected by a vertical duct 11 formed centrally in thecasting and leading upwardly through a tubular portion 12 rising fromsaid casting. Connected to the tubular portion 12 is a tubular extension13 having formed therein a sight glass 14 and Within the said tubularextension 13 a distance above the said sight glass is mounted aregulating or globe valve 15 to regulate or control the supply of oilfrom an oil reservoir or cup 16 in communication with and supported bythe tubular extension. The oil cup 16 is formed at its top wit-h aremovable cap 17 whereby lubricant can be introduced into the said cupor reservoir. Leading from the bottom of the oil cup or reservoir 16 isa drain cook 18 whereby the lubricant or foreign matter can be drawn offor discharged from the cup or reservoir. Positioned within the tubularextension 13 at the point of location of the sight glass 14: is a dripnozzle 19 which will cause the lubricant or oil to be delivered in dropsfrom the oil reservoir or cup 16 into the longitudinal channel orpassage 10 formed in the casting.

Working in the longitudinal bore or passageway 10 is a feed piston orplunger 20 adapted for sliding movement and to the outer end of theplunger or piston is a wrist pin connection 21 with a link 22 the latterpivotally connected to an arm 23'formed on and projecting from the valverod 7 of the engine and through the medium of the arm 23 the plunger orpiston 20 is reciprocated in the bore or passageway formed in thecasting to force the oil from the oil reservoir or cup to the enginecylinder. Surrounding the piston or plunger 20 is a packing gland orcollar 24 the latter threaded into the wall of the bore or passageway 10at one end of the casting so as to form an oil tight joint to preventthe escape of oil from this end of the casting. Leading from theopposite end of the casting 9 and in communication with the bore orpassageway 10 and the steam engine cylinder is a supply pipe 25 throughwhich the oil or lubricant from the reservoir or cup 16 passes into thesaid engine cylinder. \Vithin the supply pipe 25 is located a checkvalve 26 which prevents steam from entering the longitudinal bore orpassageway from the steam cylinder of the engine.

Between the oil reservoir or cup 16 and the steam engine cylinder 5 andin communication therewith is a steam supply pipe 27 the latter adaptedto deliver from the steam engine cylinder steam into the oil reservoiror cup 16 so as to maintain the lubricant or other oily fluid thereinwarm and thereby prevent the lubricant becoming chilled during coldweather. The said steam supply pipe 27 is provided with a cut off valve28 whereby the supply of steam from the en-- gine cylinder to thereservoir can be regulated or shut off at the will of the operator.

It is obvious that during the forward stroke of the valve rod 7 thepiston or plunger will be caused to move in the same direction so as toforce oil delivered from the reservoir into the bore or passageway 10 tothe engine cylinder 5 through the supply pipe leading from the casting 9to the said engine cylinder.

What is claimed, is

The combination with a steam engine cylinder, steam chest, and its valverod, of a casting mounted upon the steam chest and containing alongitudinal bore, and a vertical duct intersecting the same, a tubularportion rising from said casting, an oil reservoir having a tubularextension connected with the tubular portion, a sight glass formed inthe tubular extension, a regulating valve mounted in said tubularextension, a plunger slidably mounted in the bore, a link havingwristpin connection with the plunger, an arm formed on said valve rodand pivotally connected to the link, a supply pipe in communication withthe bore and engine cylinder, and a valve-controlled steam supply pipeleading from the engine cylinder to the oil reservoir.

In testimony whereof, I aliix my signature, in presence of twowitnesses.

CLEO BARNES.

\Vitnesses J. F. COLEMAN, JAMES CURRAN.

Copies of this patent may be obtained for five cents each, by addressingthe "Commissioner of Patents, Washington, D. C.

